Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752743AbdHHIwy (ORCPT ); Tue, 8 Aug 2017 04:52:54 -0400 Received: from mx1.redhat.com ([209.132.183.28]:53324 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752245AbdHHIwx (ORCPT ); Tue, 8 Aug 2017 04:52:53 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com B0D6061463 Authentication-Results: ext-mx10.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx10.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=ming.lei@redhat.com From: Ming Lei To: Jens Axboe , Christoph Hellwig , Huang Ying , Andrew Morton , Alexander Viro Cc: linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, Ming Lei , Mike Snitzer Subject: [PATCH v3 35/49] dm-crypt: don't clear bvec->bv_page in crypt_free_buffer_pages() Date: Tue, 8 Aug 2017 16:45:34 +0800 Message-Id: <20170808084548.18963-36-ming.lei@redhat.com> In-Reply-To: <20170808084548.18963-1-ming.lei@redhat.com> References: <20170808084548.18963-1-ming.lei@redhat.com> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Tue, 08 Aug 2017 08:52:52 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 698 Lines: 24 The bio is always freed after running crypt_free_buffer_pages(), so it isn't necessary to clear the bv->bv_page. Cc: Mike Snitzer Cc:dm-devel@redhat.com Signed-off-by: Ming Lei --- drivers/md/dm-crypt.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index cdf6b1e12460..664ba3504f48 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -1450,7 +1450,6 @@ static void crypt_free_buffer_pages(struct crypt_config *cc, struct bio *clone) bio_for_each_segment_all(bv, clone, i) { BUG_ON(!bv->bv_page); mempool_free(bv->bv_page, cc->page_pool); - bv->bv_page = NULL; } } -- 2.9.4